The DOI matches its Crossref record; 93 of the 94 references it cites were found in a registry or an index.
The chemistry of peroxynitrite: a product from the reaction of nitric oxide with superoxide
Abstract
Nitric oxide and superoxide, which are produced by several cell types, rapidly combine to form peroxynitrite. This reaction can result in nitric oxide scavenging, and thus mitigation of the biological effects of superoxide. Also, superoxide can trap and hence modulate the effects of nitric oxide; superoxide dismutase, by controlling superoxide levels, therefore can influence the reaction pathways open to nitric oxide. The production of peroxynitrite, however, causes its own sequelae of events: Although neither .NO nor superoxide is a strong oxidant, peroxynitrite is a potent and versatile oxidant that can attack a wide range of biological targets. The peroxynitrite anion is relatively stable, but its acid, peroxynitrous acid (HOONO), rearranges to form nitrate with a half-life of approximately 1 s at pH 7, 37 degrees C. HOONO exists as a Boltzmann distribution of rotamers; at 5-37 degrees C HOONO has an apparent acidity constant, pKa,app, of 6.8. Oxidation reactions of HOONO can involve two-electron processes (such as an SN2 displacement) or a one-electron transfer (ET) reaction in which the substrate is oxidized by one electron and peroxynitrite is reduced. These oxidation reactions could involve one of two mechanisms. The first mechanism is homolysis of HOONO to give HO. and .NO2, which initially are held together in a solvent cage. This caged pair of radicals (the "geminate" pair) can either diffuse apart, giving free radicals that can perform oxidations, or react together either to form nitrate or to reform HOONO (a process called cage return). A large amount of cage return can explain the small entropy of activation (Arrhenius A-factor) observed for the decomposition of HOONO. A cage mechanism also can explain the residual yield of nitrate that appears to be formed even in the presence of high concentrations of all of the scavengers studied to date, since scavengers capture only free HO. and .NO2 and not caged radicals. If the cage mechanism is correct, the rate of disappearance of peroxynitrite be slower in solvents of higher viscosity, and we do not find this to be the case. The second mechanism is that an activated isomer of peroxynitrous acid, HOONO*, can be formed in a steady state. The HOONO* mechanism can explain the inability of hydroxyl radical scavengers to completely block either nitrate formation or the oxidation of substrates such as methionine, since HOONO* would be less reactive, and therefore more selective, than the hydroxyl radical itself.(ABSTRACT TRUNCATED AT 400 WORDS)
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“In addition, peroxynitrite is capable of nitrating tyrosine or tryptophan residues, or oxidising methionine residues [123,124,125,126,127,128].”
From Superoxide Anion Chemistry—Its Role at the Core of the Innate Immunity (2023) · cites this paper as [126]
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Cites
McCord, J. M., & Fridovich, I. (1969) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(18)63504-5 · Cited by 12,952
Buxton, G. V., Greenstock, C. L., Helman, W. P., & Ross, A. B. (1988) · Journal of Physical and Chemical Reference Data · doi:10.1063/1.555805 · Cited by 12,332
Nitric oxide release accounts for the biological activity of endothelium-derived relaxing factor
Palmer, R. M. J., Ferrige, A. G., & Moncada, S. (1987) · Nature · doi:10.1038/327524a0 · Cited by 10,704
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G., & Taylor, R. (1987) · Journal of the Chemical Society Perkin Transactions 2 · doi:10.1039/p298700000s1 · Cited by 8,029
Beckman, J. S., Beckman, T. W., Chen, J., Marshall, P. A., & Freeman, B. A. (1990) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.87.4.1620 · Cited by 7,029
Advanced Organic Chemistry: Reactions, Mechanisms, and Structure
March, J. (1977) · Andalas University Repository (Andalas University) · Cited by 4,022
Biochemistry of nitric oxide and its redox-activated forms
Stamler, J. S., Singel, D. J., & Loscalzo, J. (1992) · Science · doi:10.1126/science.1281928 · Cited by 2,744
Peroxynitrite oxidation of sulfhydryls.
Radí, R., Beckman, J. S., Bush, K., & Freeman, B. Α. (1991) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(20)64313-7 · Cited by 2,492
The reaction of NO with superoxide
Huie, R. E., & Padmaja, S. (1993) · Free Radical Research Communications · doi:10.3109/10715769309145868 · Cited by 2,121
Redox signaling: Nitrosylation and related target interactions of nitric oxide
Stamler, J. S. (1994) · Cell · doi:10.1016/0092-8674(94)90269-0 · Cited by 1,723
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Nitric Oxide and Peroxynitrite in Health and Disease
Pacher, P., Beckman, J. S., & Liaudet, L. (2007) · Physiological Reviews · doi:10.1152/physrev.00029.2006 · Cited by 6,390
Sarcopenia: Aging-Related Loss of Muscle Mass and Function
Larsson, L., Degens, H., Li, M., Salviati, L., Lee, Y. I., Thompson, W., Kirkland, J. L., & Sandri, M. (2019) · Physiological Reviews · doi:10.1152/physrev.00061.2017 · Cited by 1,797
Free radicals, oxidative stress, and antioxidants in human health and disease
Aruoma, O. I. (1998) · Journal of the American Oil Chemists' Society · doi:10.1007/s11746-998-0032-9 · Cited by 1,682
“Indeed, nitration of tyrosine residues appears to be a "marker" of ONOO − -dependent damage in vivo (42, (54) (55) (56) (57) (58) (59) (60) (61) (62) (63) .”
BackgroundAntioxidant Activity of Proteins and Peptides
Elias, R. J., Kellerby, S. S., & Decker, E. A. (2008) · Critical Reviews in Food Science and Nutrition · doi:10.1080/10408390701425615 · Cited by 1,389
“Another antioxidant mechanism of proteins could result from their ability to reduce lipid hydroperoxides to relatively nonreactive lipid hydroxides by non-radical reactions (Garner et al., 1998a; Garner et al., 1998b; Pryor et al., 1994; Pryor and Squadrito, 1995).”
BackgroundGender differences in the regulation of blood pressure
Reckelhoff, J. F. (2001) · Hypertension · doi:10.1161/01.hyp.37.5.1199 · Cited by 1,268
Metadata
- Authors
- Pryor, W. A., & Squadrito, G. L.
- Affiliations
- Louisiana State University (US)
- Venue
- American Journal of Physiology-Lung Cellular and Molecular Physiology
- Publisher
- American Physiological Society
- Published
- 1995-05-01
- Volume
- 268
- Issue
- 5
- Pages
- L699-L722
- ISSN
- 1040-0605 (ISSN-L)
- 1522-1504
- OpenAlex
- W2209831038
- Cited by
- 1,511
- References
- 94
- Citations by year
- 2026: 11 · 2025: 13 · 2024: 19 · 2023: 21 · 2022: 21 · 2021: 19 · 2020: 24 · 2019: 28 · 2018: 29 · 2017: 30 · 2016: 30 · 2015: 35 · 2014: 42 · 2013: 55 · 2012: 47
- FWCI
- 52.08
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- American Journal of Physiology-Lung Cellular and Molecular Physiology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Physiology (medical) › Nitric Oxide and Endothelin Effects
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
- Physical Sciences › Chemistry › Organic Chemistry › Free Radicals and Antioxidants
- Keywords
- peroxynitrite, nitric oxide, superoxide, peroxynitrous acid, nitrate formation, superoxide dismutase, nitric oxide scavenging, single electron transfer, two-electron oxidation, peroxynitrite decomposition, hydroxyl radical scavengers, nitric oxide synthase, nitric oxide signaling
- MeSH terms
- Animals, Humans, Hydrogen-Ion Concentration, Hydroxylation, Methionine, Nitrates, Nitric Oxide, Nitroso Compounds, Oxidation-Reduction, Sulfhydryl Compounds, Superoxides, Viscosity
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